.page-contact {
  background: var(--paper);
  color: var(--ink);
  --pc-gap: clamp(24px, 3.4vw, 44px);
  --pc-cut: 22px;
}

/* ---------- 首屏 ---------- */

.page-contact .opening {
  padding: clamp(36px, 6vw, 82px) 0 clamp(28px, 4vw, 56px);
}

.page-contact .breadcrumbs {
  margin-bottom: clamp(26px, 4vw, 52px);
}

.page-contact .opening-body {
  display: grid;
  gap: clamp(14px, 2vw, 22px);
}

.page-contact .eyebrow {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--scale);
}

.page-contact .display-title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 200;
  font-size: clamp(54px, 11vw, 126px);
  line-height: 0.94;
  letter-spacing: -0.025em;
  color: var(--ink);
}

.page-contact .opening-split {
  display: grid;
  gap: var(--pc-gap);
  align-items: start;
  margin-top: clamp(14px, 2.6vw, 30px);
}

@media (min-width: 860px) {
  .page-contact .opening-split {
    grid-template-columns: minmax(0, 1.18fr) minmax(0, 1fr);
    gap: clamp(32px, 5vw, 80px);
  }
}

.page-contact .opening-lede {
  margin: 0;
  max-width: 46ch;
  color: var(--ink);
}

.page-contact .opening-facts {
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--ink);
}

.page-contact .fact-row {
  display: grid;
  grid-template-columns: minmax(84px, 0.55fr) minmax(0, 1fr);
  gap: 12px;
  padding: 9px 0;
  border-bottom: 1px solid var(--hairline-soft);
}

.page-contact .fact-row dt,
.page-contact .fact-row dd {
  margin: 0;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
}

.page-contact .fact-row dt {
  font-size: 10px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--scale);
}

.page-contact .fact-row dd {
  font-size: 14px;
  color: var(--ink);
}

/* ---------- 渠道分置双栏 ---------- */

.page-contact .contact-body {
  padding: clamp(20px, 3vw, 40px) 0 clamp(44px, 7vw, 92px);
}

.page-contact .channel-split {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--pc-gap);
}

@media (min-width: 940px) {
  .page-contact .channel-split {
    grid-template-columns: minmax(250px, 20rem) minmax(0, 1fr);
    gap: clamp(40px, 6vw, 92px);
    align-items: start;
  }
}

.page-contact .channel-rail {
  background: var(--board);
  padding: clamp(22px, 3vw, 34px);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - var(--pc-cut)), calc(100% - var(--pc-cut)) 100%, 0 100%);
}

@media (min-width: 940px) {
  .page-contact .channel-rail {
    position: sticky;
    top: clamp(104px, 13vh, 148px);
  }
}

.page-contact .rail-note {
  margin: clamp(12px, 1.6vw, 18px) 0 0;
  font-family: var(--font-body);
  font-size: 14px;
  line-height: 1.85;
  color: var(--grid);
}

.page-contact .channel-list {
  list-style: none;
  margin: clamp(18px, 2.4vw, 26px) 0 0;
  padding: 0;
}

.page-contact .channel-item {
  padding: 14px 0;
  border-top: 1px solid var(--hairline);
}

.page-contact .channel-item:last-child {
  border-bottom: 1px solid var(--hairline);
}

.page-contact .channel-key {
  display: block;
  margin-bottom: 6px;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--scale);
}

.page-contact .channel-val {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(13px, 1.4vw, 16px);
  line-height: 1.55;
  color: var(--ink);
  text-decoration: none;
  overflow-wrap: anywhere;
  word-break: break-word;
}

.page-contact a.channel-val {
  border-bottom: 1px solid var(--lava);
  padding-bottom: 1px;
}

.page-contact a.channel-val:hover,
.page-contact a.channel-val:focus-visible {
  color: var(--lava);
}

.page-contact a.channel-val:focus-visible {
  outline: 2px solid var(--lava);
  outline-offset: 3px;
}

.page-contact .channel-val.is-plain {
  border-bottom: none;
}

.page-contact .channel-hint {
  display: block;
  margin-top: 7px;
  font-family: var(--font-body);
  font-size: 13px;
  line-height: 1.7;
  color: var(--grid);
}

.page-contact .rail-foot {
  margin: clamp(18px, 2.4vw, 26px) 0 0;
  padding-top: 14px;
  border-top: 1px dashed var(--hairline);
  font-family: var(--font-mono);
  font-size: 11px;
  line-height: 1.8;
  letter-spacing: 0.02em;
  color: var(--scale);
}

/* ---------- 纠错提交清单 ---------- */

.page-contact .submission-main {
  display: grid;
  gap: clamp(26px, 3.6vw, 46px);
  min-width: 0;
}

.page-contact .submission-head {
  display: grid;
  gap: 12px;
}

.page-contact .submission-head .index-label {
  margin: 0;
}

.page-contact .submission-head .section-title {
  margin: 0;
}

.page-contact .submission-head .lede {
  margin: 0;
  max-width: 54ch;
}

.page-contact .checklist {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--ink);
}

.page-contact .check-item {
  border-bottom: 1px solid var(--hairline);
}

.page-contact .check-box {
  position: absolute;
  opacity: 0;
  width: 1px;
  height: 1px;
  pointer-events: none;
}

.page-contact .check-label {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: clamp(12px, 1.8vw, 20px);
  align-items: start;
  padding: clamp(14px, 1.9vw, 20px) 4px;
  cursor: pointer;
}

.page-contact .check-no {
  position: relative;
  display: block;
  width: 22px;
  height: 22px;
  margin-top: 2px;
  border: 1px solid var(--grid);
  background: transparent;
  clip-path: polygon(0 0, 100% 0, 100% 68%, 68% 100%, 0 100%);
  font-family: var(--font-mono);
  font-size: 0;
  line-height: 1;
  transition: background-color var(--speed) linear, border-color var(--speed) linear;
}

.page-contact .check-no::after {
  content: "";
  position: absolute;
  left: 7px;
  top: 3px;
  width: 5px;
  height: 10px;
  border-right: 2px solid var(--paper);
  border-bottom: 2px solid var(--paper);
  transform: rotate(42deg) scale(0.4);
  transform-origin: center;
  opacity: 0;
  transition: opacity var(--speed) linear, transform var(--speed) linear;
}

.page-contact .check-box:checked + .check-label .check-no {
  background: var(--turf);
  border-color: var(--turf);
}

.page-contact .check-box:checked + .check-label .check-no::after {
  opacity: 1;
  transform: rotate(42deg) scale(1);
}

.page-contact .check-box:focus-visible + .check-label .check-no {
  outline: 2px solid var(--lava);
  outline-offset: 3px;
}

.page-contact .check-text {
  display: grid;
  gap: 5px;
  min-width: 0;
}

.page-contact .check-text strong {
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(15px, 1.6vw, 17px);
  letter-spacing: -0.005em;
}

.page-contact .check-text span {
  font-family: var(--font-body);
  font-size: 14px;
  line-height: 1.85;
  color: var(--grid);
}

.page-contact .submission-figure {
  margin: 0;
}

.page-contact .submission-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  background: var(--board);
}

/* ---------- 受理类型深色区 ---------- */

.page-contact .intake {
  background: var(--room);
  color: var(--paper);
  padding: clamp(48px, 7vw, 96px) 0;
}

.page-contact .intake-head {
  display: grid;
  gap: 12px;
  max-width: 62ch;
  margin-bottom: clamp(26px, 4vw, 46px);
}

.page-contact .intake-head .index-label {
  margin: 0;
  color: var(--mist);
}

.page-contact .intake-head .section-title {
  margin: 0;
  color: var(--paper);
}

.page-contact .intake-head .lede {
  margin: 0;
  color: var(--mist);
}

.page-contact .intake-list {
  list-style: none;
  margin: 0;
  padding: 0;
  counter-reset: intake;
}

.page-contact .intake-item {
  border-top: 1px solid rgba(242, 239, 232, 0.2);
}

.page-contact .intake-item:last-child {
  border-bottom: 1px solid rgba(242, 239, 232, 0.2);
}

.page-contact .intake-item > summary {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto auto;
  gap: clamp(12px, 2vw, 26px);
  align-items: center;
  padding: clamp(16px, 2.4vw, 26px) 2px;
  cursor: pointer;
  list-style: none;
}

.page-contact .intake-item > summary::-webkit-details-marker {
  display: none;
}

.page-contact .intake-item > summary::after {
  content: "+";
  font-family: var(--font-mono);
  font-size: 20px;
  line-height: 1;
  color: var(--signal);
  transform: translateY(-2px);
}

.page-contact .intake-item[open] > summary::after {
  content: "−";
}

.page-contact .intake-item > summary:focus-visible {
  outline: 2px solid var(--focus);
  outline-offset: 2px;
}

.page-contact .intake-no {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--signal);
}

.page-contact .intake-name {
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(18px, 2.2vw, 27px);
  letter-spacing: -0.012em;
  color: var(--paper);
}

.page-contact .intake-tag {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--mist);
  white-space: nowrap;
}

@media (max-width: 640px) {
  .page-contact .intake-item > summary {
    grid-template-columns: auto minmax(0, 1fr) auto;
    row-gap: 8px;
  }
  .page-contact .intake-tag {
    grid-column: 2 / 3;
    white-space: normal;
  }
  .page-contact .intake-item > summary::after {
    grid-column: 3 / 4;
    grid-row: 1 / 2;
  }
}

.page-contact .intake-detail {
  padding: 0 2px clamp(22px, 3vw, 34px);
  max-width: 70ch;
}

.page-contact .intake-detail p {
  margin: 0 0 16px;
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.95;
  color: var(--mist);
}

.page-contact .intake-req {
  margin: 0;
  border-top: 1px dashed rgba(242, 239, 232, 0.22);
}

.page-contact .req-row {
  display: grid;
  grid-template-columns: minmax(72px, 0.34fr) minmax(0, 1fr);
  gap: 14px;
  padding: 9px 0;
  border-bottom: 1px dashed rgba(242, 239, 232, 0.14);
}

.page-contact .req-row dt,
.page-contact .req-row dd {
  margin: 0;
  font-family: var(--font-mono);
}

.page-contact .req-row dt {
  font-size: 10px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--mist);
}

.page-contact .req-row dd {
  font-size: 13px;
  line-height: 1.7;
  color: var(--paper);
}

/* ---------- 响应时效 ---------- */

.page-contact .timing {
  background: var(--board);
  padding: clamp(46px, 6.5vw, 94px) 0;
  position: relative;
}

.page-contact .timing::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--grid);
  transform: skewY(-0.45deg);
  transform-origin: left center;
}

.page-contact .timing-grid {
  display: grid;
  gap: var(--pc-gap);
  align-items: start;
}

@media (min-width: 900px) {
  .page-contact .timing-grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr);
    gap: clamp(36px, 5.5vw, 84px);
  }
}

.page-contact .timing-intro {
  display: grid;
  gap: 12px;
  max-width: 48ch;
}

.page-contact .timing-intro .index-label {
  margin: 0;
}

.page-contact .timing-intro .section-title {
  margin: 0;
}

.page-contact .timing-intro .lede {
  margin: 0;
}

.page-contact .note-toggle {
  margin-top: 8px;
  border-top: 1px solid var(--hairline);
  border-bottom: 1px solid var(--hairline);
}

.page-contact .note-toggle > summary {
  padding: 12px 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--lava);
  cursor: pointer;
  list-style: none;
}

.page-contact .note-toggle > summary::-webkit-details-marker {
  display: none;
}

.page-contact .note-toggle > summary::before {
  content: "▸ ";
  font-size: 11px;
}

.page-contact .note-toggle[open] > summary::before {
  content: "▾ ";
}

.page-contact .note-toggle > summary:focus-visible {
  outline: 2px solid var(--lava);
  outline-offset: 2px;
}

.page-contact .note-toggle p {
  margin: 0 0 16px;
  font-family: var(--font-body);
  font-size: 14px;
  line-height: 1.9;
  color: var(--grid);
}

.page-contact .timing-list {
  margin: 0;
  border-top: 1px solid var(--ink);
}

.page-contact .timing-row {
  display: grid;
  grid-template-columns: minmax(96px, 0.7fr) minmax(0, 1.3fr);
  gap: 16px;
  padding: clamp(12px, 1.6vw, 17px) 0;
  border-bottom: 1px solid var(--hairline);
}

.page-contact .timing-row dt {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--lava);
}

.page-contact .timing-row dd {
  margin: 0;
  font-family: var(--font-body);
  font-size: 14px;
  line-height: 1.85;
  color: var(--ink);
}

/* ---------- 不予受理 ---------- */

.page-contact .refusals {
  padding: clamp(46px, 6.5vw, 94px) 0 clamp(40px, 5.5vw, 78px);
  background: var(--paper);
}

.page-contact .refusals-grid {
  display: grid;
  gap: var(--pc-gap);
  align-items: start;
}

@media (min-width: 900px) {
  .page-contact .refusals-grid {
    grid-template-columns: minmax(0, 0.92fr) minmax(0, 1.08fr);
    gap: clamp(36px, 5.5vw, 84px);
  }
}

.page-contact .refusals-intro {
  display: grid;
  gap: 12px;
  max-width: 46ch;
}

.page-contact .refusals-intro .index-label {
  margin: 0;
  color: var(--lava);
}

.page-contact .refusals-intro .section-title {
  margin: 0;
}

.page-contact .refusals-intro .lede {
  margin: 0;
}

.page-contact .inline-link {
  color: var(--ink);
  text-decoration: none;
  border-bottom: 1px solid var(--turf);
  padding-bottom: 1px;
}

.page-contact .inline-link:hover,
.page-contact .inline-link:focus-visible {
  color: var(--turf);
}

.page-contact .inline-link:focus-visible {
  outline: 2px solid var(--lava);
  outline-offset: 3px;
}

.page-contact .refusal-list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--ink);
}

.page-contact .refusal-item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 14px;
  align-items: start;
  padding: clamp(13px, 1.8vw, 18px) 0;
  border-bottom: 1px solid var(--hairline);
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.85;
  color: var(--ink);
}

.page-contact .refusal-mark {
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.85;
  color: var(--lava);
}

/* ---------- 收尾通栏 ---------- */

.page-contact .closing-plate {
  position: relative;
  margin: 0;
  background: var(--ink);
  border-top: 3px solid var(--lava);
}

.page-contact .closing-plate img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  opacity: 0.9;
}

.page-contact .closing-caption {
  position: absolute;
  left: var(--pad-x);
  right: var(--pad-x);
  bottom: clamp(16px, 3vw, 40px);
  max-width: 520px;
  padding: 14px 20px;
  background: rgba(20, 22, 26, 0.84);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 14px), calc(100% - 14px) 100%, 0 100%);
  display: grid;
  gap: 6px;
}

.page-contact .caption-key {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--signal);
}

.page-contact .caption-text {
  font-family: var(--font-body);
  font-size: 14px;
  line-height: 1.85;
  color: var(--paper);
}

@media (max-width: 640px) {
  .page-contact .closing-caption {
    position: static;
    max-width: none;
    padding: 16px var(--pad-x) 20px;
    clip-path: none;
  }
}

/* ---------- 动效降级 ---------- */

@media (prefers-reduced-motion: reduce) {
  .page-contact .check-no,
  .page-contact .check-no::after {
    transition: none;
  }
}